A grey blazer and a grey crew-neck t-shirt are a great combo worth incorporating into your off-duty repertoire. Send an otherwise classic look down a sportier path by sporting white athletic shoes. So as you can see here, it's an on-trend, not to mention season-appropriate, ensemble to keep in your transitional rotation. Guys wondering how to rock edgy off-duty dressing in your 20s, this pairing should answer your question.